Dialysis machine

US10967114B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Alfred Gagel · Litzendorf, DE
• Pascal Kopperschmidt · Dittelbrunn, DE
• Thomas Nuernberger · Burkardroth, DE

Key dates

• Filing date: Sep 25, 2015
• Grant date: Apr 6, 2021
• Expiry date: Nov 27, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/30
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A dialysis machine has a blood circuit, a blood pump, a dialyzer, a venous pressure sensor, a substituate line, and a control unit. The control unit can operate the blood pump in a first operating mode and in a special operating mode, and start the special operating mode after a trigger event. In the special operating mode, a blood pump conveying rate is controlled via a default value or regulated to a desired value, with the default or desired value being derived from a value determined before the started special mode or corresponding to the value. The presence of an obstacle is polled before the special mode, and depending on the presence thereof, the start of the special mode is blocked or delayed and/or the selection of the default value or the desired value on the presence of the obstacle differs from the selection without the presence of the obstacle.